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Answer:
Let David's age be x years
=> James' age = x+5 years
David + James = 89
=> x + x+5=89
=> 2x=84
=> x=84/2=42 years
David's age is 42 years
Answer:
Let David's age be x years
=> James' age = x+5 years
David + James = 89
=> x + x+5=89
=> 2x=84
=> x=84/2=42 years
David's age is 42 years